Joint Airborne IASI Validation Experiment (JAIVEX) JAIVEX Welcome page ================================================== IASI, the Infrared Atmospheric Sounding Interferometer, was launched on METOP, a European meteorological polar-orbiting satellite, in October 2006. (Delayed from April 2006). Funded by EUMETSAT, the Joint Airborne IASI Validation Experiment (JAIVEX) will use the FAAM BAe146 aircraft in validation studies of IASI radiative transfer and some level 2 products. The project will take place in April and September 2007 and will involve flights over oceans timed to coincide with METOP satellite overpasses. Further flights will be flown low level over specific land calibration sites to characterise land surface emissivity. There may also be co-incident flights with other platforms including US ER-2 or Proteus aircraft and French high altitude balloon.